The DigitalGlobe Constellation World’s Largest Sub-Meter High Resolution Satellite Constellation The DigitalGlobe Constellation

The DigitalGlobe constellation of high resolution satellites offers incredible accuracy, agility and collection capacity, imaging more of the world in the finest level of detail. By 2009, this constellation will be unprec- edented in the industry, enabling customers around the globe to get the truest view of the world.

Greatest Collection Capacity We currently are able to collect nearly 1 million km2 of quality imagery every day, building an ImageLibrary already twice the size of any other as well as offering tremendous tasking capacity. And launching October 2009, WorldView-2 will double our collection capacity, add 8-band capability and provide intra-day revisit to any place on Earth. You choose the world imagery you need and the way you need it—online, offline, on your mobile device or directly into your GIS—and we deliver real-world perspective you can rely on.

High Performance and Flexibility

QuickBird Collection Scenarios WorldView-1 Collection Scenarios WorldView-2 Collection Scenarios

Multiple Point Targets Long Strip Multiple Point Targets Long Strip Multiple Point Targets Long Strip

16.5 km 17.5 km 16.4 km 16.5 km 17.5 km 16.4 km 115 km

Large Area Collect Large Area Collect Large Area Collect

250 km 250 km 16.5 km 66 km 66 km 66 km

16.5 km 70 km 65.6 km

Stereo Stereo 17.5 km 16.4 km Not Collected

Panchromatic Panchromatic Panchromatic Sensor Sensor Sensor Multispectral Multispectral Bands • Red Bands Bands • Blue 4 Additional Bands • Green • Red Edge • Near-IR • Coastal • Yellow • Near-IR2 Specifications

Feature QuickBird WorldView-1 WorldView-2

Operational Altitude 450 km 496 km 770 km

Weight Class 1100 kg (2400 lb) 2,500 kg (5500 lb) 2,800 kg (6200 lb)

Spectral Characteristics Pan + 4 MS Pan Pan + 8 MS

Panchromatic Resolution 60 cm (0.6 m) 50 cm (0.5 m) 50 cm (0.5 m) (nadir) Multispectral Resolution 2.4 meters N/A 1.8 meters (nadir)

Accuracy Specification* 24M CE90 6.5M CE90 6.5M CE90

* Measured Accuracy 16.4M CE90 4.1M CE90 TBD (133 samples)

Swath Width 16.5 km 17.5 km 16.4 km

Average Revisit at 2.4 days at 1m GSD 1.7 days at 1m GSD 1.1 days at 1m GSD 40°N latitude 5.9 days at 20° off-nadir 5.9 days at 20° off-nadir 3.7 days at 20° off-nadir

Monoscopic Area Coverage 1x 4.5x per satellite

Single-Pass Single Scene 2 x 2 Scenes (<30° off nadir) Stereoscopic Coverage (<10° off-nadir) 1 x 10 Scenes (<30° off nadir)

Attitude Control Actuators Reaction Wheels Control Moment Gyros (CMGs)

Onboard Storage 137 Gbits (2^37 bits) 2199 Gbits (2^41 bits)

Wideband Data 320 Mbps total 800 Mbps total Downlink Rate 280 Mbps effective 697 Mbps effective

Rapid Delivery Options Virtual Ground Terminal (VGT) Direct Downlink, VGT

*At nadir, excluding terrain effects

The Most Advanced Satellite Constellation

50 cm Panchromatic 50 cm Pan-sharpened • High resolution showing crisp detail • Most spectral diversity commercially available • Greatest collection capacity • Lowest revisit times—intra-day revisits - At 1 m GSD, average revisit is 1 day or less; maximum never exceeds 2 days - Provides more same-day passes • High geolocation accuracy • Largest high resolution swath width • Most agile with rapid retargeting • Greatest in-track stereo collection The DigitalGlobe Constellation World’s Largest Sub-Meter High Resolution Satellite Constellation

QuickBird WorldView-1 WorldView-2

More Collection

2008 2009 Capable of collecting nearly Will be capable of 2 collecting nearly 1,000,000 km QuickBird WorldView-1 WorldView-2 2 per day. 2,000,000 km per day.*

* With the launch of WorldView-2

WorldView-2 Operational Greater Agility Altitude: 770 km

Ground Track

WorldView-1 Operational QuickBird Slew Time: Altitude: 496 km 62 Seconds 300 km QuickBird Operational Altitude: 450 km

WorldView-1 Slew Time: 9 Seconds 300 km

Faster Revisit The DigitalGlobe Constellation enables intra-day revisits.

WorldView-2 Slew Time: 9 Seconds Target Spacing: 300 km The DigitalGlobe Constellation

Corporate (U.S.) Singapore London Phone: 303.684.4561 Phone: +65.6389.4851 Phone: +44.20.8899.6801 Toll-free: 800.496.1225 Fax: +65.6732.9010 Fax: +44.20.8899.6831 Fax: 303.684.4562

1601 Dry Creek Drive 1 Kim Seng Promenade, #09-01 Building 3, 566 Chiswick Park www..com Suite 260 Great World City East Tower Chiswick High Road [email protected] Longmont, CO 80503 Singapore 237994 London W4 5YA United Kingdom Rev 07/09